Answer:
see below
Step-by-step explanation:
3x^2=6x+9
Subtract 6x from each side
3x^2-6x=9
Subtract 9 from each side
3x^2-6x-9=0
Factor out 3
3(x^2 -2x-3) =0
Factor inside the parentheses
3 ( x-3)(x+1) =0
Using the zero product property
x-3 =0 x+1 =0
x=3 x = -1
